Repair device for inner tire tubes and other pliable articles



REPAIR DEVICE FOR INNER TIRE TUBES AND OTHER PLIABLE ARTICLES Filed Aug.9, 1945 July MJMQ. N. STEVENS 9 9 Patented July 12, 1949 UNITED STATESiATENT OFFICE REPAIR DEVICE FOR INNER TIRE TUBES AND OTHER PLIABLEARTICLES Nichols Stevens, Chicago, Ill.

. Application August 9, 1945, Serial No. 609,738

1 Claim.

This invention relates to a repair device for inner tubes andothenpliable articles and its principal object is to provide a' repairdevice capable of being quickly and easily applied to a punctured or outinner tube or other pliable article.

Another object is to provide a repair device which when applied,positively prevents breakage .arough the puncture or cut.

Another object is to provide a repair device of simple, substantial andrelatively inexpensive character.

With these and other objects and advantages in View, this inventionconsists in the several novel features hereinafter fully set forth andmore particularly defined in the claim.

The invention is clearly illustrated in the drawing accompanying thisspecification, in which:

Fig. 1 is a plan of a repair device embodying a simple form of thepresent invention, showing the same applied to a fragment of an innertire tube;

Fig. 2 is a vertical longitudinal section thereof taken on the line 2-2of Fig. 1;

Fig. 3 is an under plan of one of the composite washers forming a partof the repair device, and

Fig. 4 is a side elevation of a tool used in connection with the device.

Figures 1 to 3 of the drawing show the repair device upon an enlargedscale.

Referring to said drawing, the reference character 5 designates afragment of an inner tire tube having a cut or puncture 6 therein, whichis sealed by a repair device embodying a simple form of the presentinvention.

On the outer face of the tube is a composite washer i composed of ametal disc 8 formed with its edge portion curled over the body portionto provide an inturned lip 9.

Seated in the groove, formed between the body and lip of the disc, is arubber or rubber-like disc iii, and formed as a part of, or separatefrom the disc ii), is a rubber or rubber-like flap II, also secured partway along its edge between the lip 9 and washer Hi. The edge 12 of theflap is free whereby the flap may be raised to obtain access to a clampscrew I3. The disc 1 and washer iii are centrally apertured to receivethe screw. A metal washer is placed under the head of the screw l3.

On the inner face of the tube is an inner composite washer comprising ametal Washer M having a blunt pointed end I5 whereby the inner washermay be thrust through the cut or puncture in the tube. The rim of theinner washer is also curled under the body to provide a lip it and inthe groove between the body of the inner washer and the lip is securedthe edge portion of a rubber or rubber-like washer H. The edge of thewasher H is tightly gripped between the body of the inner Washer andlip.

A hole is punched in the inner metal washer i4 and the metal around thehole is extruded as at it and is internally threaded to receive thethreads of the screw [3. The rubber washer H prevents air from leakingout between the threads of the screw and extruded part l8.

Desirably, but not necessarily, a flexible, pliable washer i9 isinterposed between the metal disc l and the outer face of the tube,which washer is formed with an aperture through which the screw extends.

To apply the repair device to a cut or punctured inner tube, the innercomposite washer is thrust through th cut or puncture by inserting thepointed end first, and is then placed against the inner face of the tubewith the hole in register with the cut or puncture, using the pointedend of the inner washer as a handle. The tube with the inner compositewasher therein may then be laid flat on the ground or other object, theflexible washer I9 is placed upon the outer face of the tube with itshole in register with the hole in the inner washer. The composite disc 1is then placed on the flexible washer IS with the holes in register withthe other holes; the flap II is then turned back and the screw insertedthrough the holes and screwed up tight in the inner metal washer,thereby clamping the cut or punctured tube between the outer disc andinner Washer.

The rubber washer l1 prevents air from leaking out between the threadsof the screw and. inner metal washer. When the tube is inflated, therubber washer ll is pressed against the inner face of the metal innerwasher and the screw. Said washer ll protects the inner tube againstinjury by the screw i3 in case the tire becomes deflated. The rubberflap II protects the tire casing against any abrasion by the head of thescrew.

To facilitate assembling the device on an inner tube, a tool such as ascrew 2| (see Fig. 4) may be used. This screw is screwed into the screwhole in the metal inner washer before inserting it into the tube. Thescrew 2| then serves as a handle for the inner washer until the userlocates the same with respect to the puncture. The screw is thenwithdrawn and the parts assembled as above explained.

The repair device may be installed in all kinds of weather-rain or snow.Furthermore, oil or grease on the tube will not interfere with theinstallation of the repair device.

The repair device may be made in various sizes and the outer disc andinner metal washer may be made from materials other than metalforinstance certain plastics may be used.

Preferably the outer metal disc and inner metal washer are bowed orcrowned as shown" to present smooth surfaces to the tube.

What I claim as new and desire to secure by Letters Patent is:

A repair device comprising a; metal outer disc having a lip overlyingthe body portion of the disc, a rubber Washer With its marginal portionheld between the lip and disc, said rubber washer being formed with arubber fiap with' a portion of its marginal edge held between the lipand body of the disc, an inner rigid, pointed; dished metal washerhavinga marginal lip underlying the body portion of the washer; a rubberwasher with its] mergin'er ge gripped between the lip and body of theinner washer, said metal disc and metal washer having registerin holesand the inner metal washer being screw threaded around the hole therein,and a screw extending through said holes and threaded in the threadsaround the hole in the inner metal washer.

NICHOLS STEVENS.

REEERENEE'S? other The following references are of record in the file ofthis patent:

STATES PATENTS Number Name Date 776,697; Seiverling Dec. 6, 1904 31,064,643 DeLancey June 10, 1913 1 ,221,912 Sampson Apr. 10, 1917FOREIGN PATENTS Number I Country Date 1 5" a a B itain'- 1:9 2 @40ereatBiitem- 1912

